Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Kg2 draw
3 Kg3 draw
4 Kg4 draw
5 Kh2 draw
6 Kh4 draw
7 Rc3 draw
8 Rd3 draw
9 Re7 draw
10 Rf3 draw
11 Ra3 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Re1 loss in 2 half-moves
14 Re2 loss in 2 half-moves
15 Re4 loss in 2 half-moves
16 Re5 loss in 2 half-moves
17 Re6 loss in 2 half-moves
18 Re8 loss in 2 half-moves